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Transonic panel flutter in accelerating or decelerating flow conditionsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Shishaeva A.S., Vedeneev V.V., Aksenov A.A., Sushko G.S.
- Журнал: AIAA Journal
- Том: 56
- Номер: 3
- Год издания: 2018
- Издательство: American Institute of Aeronautics and Astronautics
- Местоположение издательства: United States
- Первая страница: 997
- Последняя страница: 1010
- DOI: 10.2514/1.J056217
- Аннотация: Nonlinear panel flutter oscillations at transonic and low supersonic flow speed demonstrate rich panel dynamics, which includes bifurcations of the limit cycle, coexisting of different limit cycles, and non-periodic oscillations. Passing through the range of transonic Mach numbers to supersonic cruise speed should be sufficiently fast to avoid significant fatigue damage. In this study, we analyze the sequence of bifurcations of limit cycles when the flow speed is continuously increasing or decreasing. Evolution of limit cycle oscillations is carefully studied. We show that the most dangerous oscillation regimes, high-frequency periodic or non-periodic oscillations, are suppressed if the flow acceleration is sufficiently fast. However, first-mode limit cycle and limit cycle involving internal 1:2 resonance, are not affected by the flow acceleration, such that lower accumulation of the fatigue damage in fast accelerating flow is possible only because of less cycles of oscillations, but not because of the decrease of the limit cycle amplitude.
- Добавил в систему: Шишаева Анастасия Сергеевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 2018-aiaa.pdf | 3,8 МБ | 17 августа 2018 [bassill] |